| Acronym | Meaning |
| LCDA MO | Linear Combination Of Donor-acceptor Molecular Orbital Theory |
| WASP | Wiskott-Aldrich Syndrome Protein |
| ZINDO | Zerner's Intermediate Neglect Of Differential Overlap |
| UNFCCC | United Nations Framework Convention On Climate Change |
| DLA | Diffusion-Limited Aggregation |
| ITP | Inosine 5'-triphosphate |
| RNAP | RNA Polymerase |
| MCDF-EAL | Multiconfiguration Dirac-Fock-extended Average Level (for Energy Levels And Wave Functions Calcn. For Atoms) |
| RSMC | Regional Specialized Meteorological Centre |
| ADF | Annular Dark-field |